average : Java Glossary

You might think about the simplest coding task in the world would be to compute the
average of two positive integers, rounded
The catch is as you can see from the program, some very simple code to compute the
avarage sometimes fails.

Alternates

Mathematicians have come up with a number of ways of computing the
average of a list of numbers besides adding them up and dividing by the number of
elements. Here is code to compute some of the variants: